The Chelsea 272 Series is a complete reinvention of Parker’s medium-duty hot shift PTO line, consolidating the 230, 231, 236, 238, 270, and 271 Series into a single, versatile solution.
Engineered for strength and reliability, the 272 Series features upgraded internal components capable of handling up to 300 lb-ft of torque—whether operating intermittently or continuously.
With nine speed ratios, 18 shift options, and a wide range of direct-mount and driveshaft outputs, the 272 Series offers unmatched flexibility.
Direct-mount options can be equipped with Wet-Spline technology (optional) for extended PTO and pump shaft life.
Driveshaft outputs feature Smart-Start technology, designed to handle high-torque start-up conditions smoothly.
Available with hydraulic or air shift options, the 272 Series also includes an integral air control valve for simplified installation.
Built for demanding applications across towing and recovery, aerial equipment, construction machinery, and water trucks, the Chelsea 272 Series sets a new standard for medium-duty hot shift PTO performance and versatility.
Technical Specifications
- Intermittent Torque: 201 to 300 lb-ft, 401 to 500 Nm
- Mounting Type: 6-Bolt
- Output Shaft Type: Round Shaft (1″ – 1/4″ Key), Round Shaft (1-1/4″ – 5/16″ Key)
- Output Power: 56+ HP, 41 to 50 kW
- Shift Type: Pneumatic, Hydraulic
- Continuous Torque: De-Rate Torque Rating 30% (Check Application Pages for Actual Torque Ratings)
- Weight: 49 lb, 22 kg
- Lubricant: X = No Pressure Lube, P = Pressure Lube, W = Wet Spline
Key Benefits
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PTO Air Switch or Hydraulic Shift
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PTO with Integral Air Control Valve
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Rotatable Flanges
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Continuous-Duty Torque Rating
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Wet-Spline Option
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Smart Start Option for High-Torque Start-up
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Two-Year Warranty
Examples of Suitable Applications
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Aerial
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Construction Equipment
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Water Trucks
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Towing & Recovery
Let's Talk 
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